A pair of straight lines is represented by 2y^2 +5xy -3x^2 = 02y2+5xy−3x2=0. Another line having an equation x+y = kx+y=k. These lines form a triangle whose centroid is (1/18,11/18)(118,1118). Find the value of k?
1 Answer
Sep 20, 2017
Explanation:
so the three lines are
and given
where
are the intersection points or the vertices.
Solving for
and then